Mon Dec 15, F. Flechtner
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Cambier, Florent, Darrozes, José, Llubes, Muriel, Seoane, Lucia, and Ramillien, Guillaume, 2025. Annual and Interannual Oscillations of Greenland's Ice Sheet Mass Variations from GRACE/GRACE-FO, Linked with Climatic Indices and Meteorological Parameters. Remote Sensing, 17(21):3552, doi:10.3390/rs17213552.
• from the NASA Astrophysics Data System • by the DOI System •
@ARTICLE{2025RemS...17.3552C,
author = {{Cambier}, Florent and {Darrozes}, Jos{\'e} and {Llubes}, Muriel and {Seoane}, Lucia and {Ramillien}, Guillaume},
title = "{Annual and Interannual Oscillations of Greenland's Ice Sheet Mass Variations from GRACE/GRACE-FO, Linked with Climatic Indices and Meteorological Parameters}",
journal = {Remote Sensing},
keywords = {gravimetry, mass changes, annual cycle, climate variability, Greenland Ice Sheet},
year = 2025,
month = oct,
volume = {17},
number = {21},
eid = {3552},
pages = {3552},
abstract = "{What are the main findings? A complete annual/seasonal cycle was
observed, based on the correlations between ice mass variations,
three climatic indices (i.e., NAO, GBI, AMO), and meteorological
parameters (i.e., Temperature, Precipitation, Albedo).
Interannual oscillations are also observed with periodicities
ranging from 4 to 7 years. They could be related to mixed
effects from the solid Earth's rotation and atmospheric
oscillations. A second interannual frequency is observed at 11
years, corresponding to the solar cycle. A complete
annual/seasonal cycle was observed, based on the correlations
between ice mass variations, three climatic indices (i.e., NAO,
GBI, AMO), and meteorological parameters (i.e., Temperature,
Precipitation, Albedo). Interannual oscillations are also
observed with periodicities ranging from 4 to 7 years. They
could be related to mixed effects from the solid Earth's
rotation and atmospheric oscillations. A second interannual
frequency is observed at 11 years, corresponding to the solar
cycle. What is the implication of the main finding? With a
complex climatic system regulating ice mass variations in
Greenland, a single external forcing on one of these indices and
parameters could have a cascading effect in space and time at an
annual and interannual scale. With a complex climatic system
regulating ice mass variations in Greenland, a single external
forcing on one of these indices and parameters could have a
cascading effect in space and time at an annual and interannual
scale. The ongoing global warming threatens the Greenland Ice
Sheet (GIS), which has exhibited an overall mass loss since
1990. This loss varies annually and interannually, reflecting
the intricate interactions between the ice sheet and atmospheric
and oceanic circulations. We investigate GIS mass balance
variations (2002─2024) using data from the Gravity Recovery and
Climate Experiment (GRACE) and its Follow-On (GRACE-FO)
missions. Monthly mass anomalies from the International
Combination Service for Time-variable Gravity Fields (COST-G)
solution are compared with cumulative climate indices (North
Atlantic Oscillation{\textemdash}NAO, Greenland Blocking
Index{\textemdash}GBI, Atlantic Multidecadal
Oscillation{\textemdash}AMO) and meteorological parameters
(temperature, precipitation, surface albedo). Empirical
Orthogonal Function analysis reveals five principal modes of
variations, the first capturing annual and interannual
frequencies (4─7 and 11 years), while subsequent modes only
describe interannual frequencies. Wavelet analysis shows
significant annual correlations between GIS mass changes and
temperature (r = {\ensuremath{-}}0.88), NAO (r = 0.74), and GBI
(r = {\ensuremath{-}}0.85). An annual cycle connects GIS mass
changes, climatic indices, and meteorological parameters, while
interannual variations highlight the role of the AMO and the
NAO. The presence of an 11-year periodicity with the mass
variations for NAO, GBI, and temperature strongly correlates
with solar activity.}",
doi = {10.3390/rs17213552},
adsurl = {https://ui.adsabs.harvard.edu/abs/2025RemS...17.3552C},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
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